[Radiance-general] IES file viewer

[Rob Guglielmetti]

On Jan 21, 2009, at 1:36 PM, Mark de la Fuente wrote:

> I second Rob's comment.  I usually have to use AGI to check an IES  
> file's orientation prior to bringing the file into Radiance.   
> Especially when dealing with asymmetric distributions.
>

I wrote ltview many years ago, as another ies file viewer  
(particularly for asymmetric distributions), too.  You can download a  
copy at:

http://www.rumblestrip.org/downloads/files/ltview.tgz

ltview is just a modification of the objview utility that ships with  
Radiance, and places a light fixture distribution (converted with the  
ies2rad utility) centered in a box with some parameters crucial to the  
proper rendering of a photometric distribution preset.  The  
distribution is centered in the box and the view is preset looking  
along the positive y axis.  It's configured for inches as the default  
units, so if dealing with metric, use "-bs  .62" to scale the "box  
size" to a more proper size.

But I am also interested in seeing this new 3D viewer!!

More info on ltview is located here:

http://www.rumblestrip.org/2004/05/10/ltview-a-radiance-utility/

- Rob Guglielmetti


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